[INFO] updating cached repository hikerpig/looke
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hikerpig/looke
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hikerpig/looke" "work/ex/beta-1.38-1/sources/1.37.0/gh/hikerpig/looke"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/hikerpig/looke'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hikerpig/looke" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hikerpig/looke"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hikerpig/looke'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 74e6e0ddb5d0b195a20ea64b8adc28e3b1bdcec4
[INFO] sha for GitHub repo hikerpig/looke: 74e6e0ddb5d0b195a20ea64b8adc28e3b1bdcec4
[INFO] validating manifest of hikerpig/looke on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of hikerpig/looke on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing hikerpig/looke
[INFO] finished frobbing hikerpig/looke
[INFO] frobbed toml for hikerpig/looke written to work/ex/beta-1.38-1/sources/1.37.0/gh/hikerpig/looke/Cargo.toml
[INFO] started frobbing hikerpig/looke
[INFO] finished frobbing hikerpig/looke
[INFO] frobbed toml for hikerpig/looke written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hikerpig/looke/Cargo.toml
[INFO] crate hikerpig/looke already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing hikerpig/looke against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hikerpig/looke:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 6a5e47243327a170ddcd26cf8c0f1be0c3584875e8ce5db34e974b19c6f3937c
[INFO] running `"docker" "start" "-a" "6a5e47243327a170ddcd26cf8c0f1be0c3584875e8ce5db34e974b19c6f3937c"`
[INFO] [stderr]    Compiling rand_os v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling rand v0.6.4
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]    Compiling tiff v0.2.1
[INFO] [stderr]    Compiling image v0.20.1
[INFO] [stderr]    Compiling looke v0.2.2-alpha.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/diff.rs:45:32
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub type PixelComparator = Box<Fn(RgbaTuple, RgbaTuple) -> bool>;
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(RgbaTuple, RgbaTuple) -> bool`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.05s
[INFO] running `"docker" "inspect" "6a5e47243327a170ddcd26cf8c0f1be0c3584875e8ce5db34e974b19c6f3937c"`
[INFO] running `"docker" "rm" "-f" "6a5e47243327a170ddcd26cf8c0f1be0c3584875e8ce5db34e974b19c6f3937c"`
[INFO] [stdout] 6a5e47243327a170ddcd26cf8c0f1be0c3584875e8ce5db34e974b19c6f3937c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hikerpig/looke:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7b76fbaee37df1c392261e39651299d2d4e1238892187db8c254ace62bc31ea1
[INFO] running `"docker" "start" "-a" "7b76fbaee37df1c392261e39651299d2d4e1238892187db8c254ace62bc31ea1"`
[INFO] [stderr]    Compiling looke v0.2.2-alpha.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/diff.rs:45:32
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub type PixelComparator = Box<Fn(RgbaTuple, RgbaTuple) -> bool>;
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(RgbaTuple, RgbaTuple) -> bool`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `"docker" "inspect" "7b76fbaee37df1c392261e39651299d2d4e1238892187db8c254ace62bc31ea1"`
[INFO] running `"docker" "rm" "-f" "7b76fbaee37df1c392261e39651299d2d4e1238892187db8c254ace62bc31ea1"`
[INFO] [stdout] 7b76fbaee37df1c392261e39651299d2d4e1238892187db8c254ace62bc31ea1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hikerpig/looke:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 56d4f3900b392b846cd56a493b4d4f7f58ff155769c39886ad91fa47e36ac594
[INFO] running `"docker" "start" "-a" "56d4f3900b392b846cd56a493b4d4f7f58ff155769c39886ad91fa47e36ac594"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/looke-8f3aeaafd14cb8b3
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "56d4f3900b392b846cd56a493b4d4f7f58ff155769c39886ad91fa47e36ac594"`
[INFO] running `"docker" "rm" "-f" "56d4f3900b392b846cd56a493b4d4f7f58ff155769c39886ad91fa47e36ac594"`
[INFO] [stdout] 56d4f3900b392b846cd56a493b4d4f7f58ff155769c39886ad91fa47e36ac594